| NWS Forecast for: Cupertino CA Issued by: National Weather Service San Francisco Bay Area/Monterey, CA Last Update: 3:39 pm PDT Sep 6, 2026 |  |
| Tonight: Mostly clear, with a low around 13. North northwest wind 8 to 13 km/h becoming light and variable in the evening. Labor Day: Sunny, with a high near 30. Light and variable wind becoming north northwest 6 to 11 km/h in the afternoon. Monday Night: Mostly clear, with a low around 16. North northwest wind 6 to 11 km/h becoming light and variable in the evening. Tuesday: Sunny, with a high near 32. Calm wind becoming northwest 5 to 8 km/h in the afternoon. Tuesday Night: Mostly cloudy, with a low around 20. West northwest wind 5 to 10 km/h becoming calm in the evening. Wednesday: Mostly sunny and hot, with a high near 36. Wednesday Night: Mostly clear, with a low around 22. Thursday: Sunny, with a high near 33. Thursday Night: Mostly clear, with a low around 18. Friday: Sunny, with a high near 30. Friday Night: Mostly clear, with a low around 16. Saturday: Mostly sunny, with a high near 27. Saturday Night: Partly cloudy, with a low around 14. Sunday: Mostly sunny, with a high near 28. | |
| Cupertino CA 37.31°N 122.03°W (Elev. 262 m) | |
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